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Finding the Fourth Proportional to 172,901.12, 259,133.52 and 92,740.28

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Solution

The fourth proportional to 172,901.12, 259,133.52 and 92,740.28 is: 138,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,901.12 : 259,133.52 = 92,740.28 : x
  2. Step 2: Convert to fraction form
    172,901.12/259,133.52 = 92,740.28/x
  3. Step 3: Cross multiply
    172,901.12x = 259,133.52 × 92,740.28
  4. Step 4: Simplify right side
    172,901.12x = 24,032,115,202.19
  5. Step 5: Solve for x
    x = 24,032,115,202.19/172,901.12
  6. Step 6: Final answer
    x = 138,993.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.